Happy pi day!

Today 14th March, sometimes written 3.14, is pi day (π). The number π is a mathematical constant, and is calculated from the ratio of a circle’s circumference to it’s diameter.

For more information about π see the Wikipedia article here. To help celebrate π day and for more fascinating facts visit the website www.piday.org

π is an irrational number. Any number that cannot be expressed as a ratio of two integers is described as irrational. Their decimal representation neither terminates nor infinitely repeats but extends infinitely without repetition and π is such an example.

For your interest and pleasure here is π to one hundred decimal places: